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Product Bulletin
Bulletin: #0008
Applicability: DuctWoRx
Date: December 4, 2004
Importance: Medium
1. Continuous vs. Blower Synchronized
Operation
2. Heat Exchanger & Cooling Coils
3. UV Lamps & Older Ducts
4. DuctwoRx Temperature Limits
5. DuctWoRx vs. UV Lamps
6. Why Doesn't DuctwoRx Require Regular
Cleanings?
7. DuctwoRx Coverage Area
8. DuctwoRx - a Fresh Air "Amplifier"
DuctWoRx™ with the new RCI technology...
is one of the most powerful products in your Air Purification arsenal.
As with all new technologies, there are lots of questions as we learn
how to use it. DuctWoRx is a simple product but there are lots of
variables to consider concerning implementation. DuctWoRx is designed to
be installed in the Furnace/AC Duct, but what about the following
questions:
- Should
DuctWoRx be installed to run continuously or be hard-wired to turn
on/off with the blower fan?
The answer is - it depends. If you don't run your blower
continuously, we recommend you cycle DuctWoRx with your blower to
prevent oxidizing gases from building up until the blower kicks in.
Although, this is not the ideal installation because you aren't
getting the full power of the product.
The best solution is to run the
heating/cooling system blower continuously:
- It circulates the powerful oxidizing gasses throughout the
home or office.
- It saves energy! Multiple independent studies have proven
that a homeowner can save on their overall energy bill through
better heating/cooling distribution.
- Virtual elimination of hot or cold spots through better air
flow.
One argument against running the blower continuously is the
additional noise. EcoQuest recommends installing a fairly
inexpensive motor controller to reduce the speed of the blower when
not in the Heat/Cooling cycle. Motor controllers can drop the blower
RPM, reducing noise, saving electricity and still provide the much
needed air circulation.
- DuctWoRx
literature shows installation after the heat exchanger & cooling
coils. Wouldn't it be more effective in the return air where it can
impact the cooling coils?
There are two reasons to install after the heat exchanger & cooling
coils:
- One of the main oxidizers produced by RCI is Hydro Peroxide
(a vapor of Hydrogen Peroxide). This vapor is absorbed when it
comes in contact with water. The result, considering the AC
coils are dripping with water during the cooling cycle, is a
weak solution of Hydrogen Peroxide. This means the DuctWoRx will
be slightly less effective.
- DuctWoRx is new technology and is not fully understood by
the majority of HVAC manufacturers. If a problem arises with
your furnace or air conditioner, it becomes easy for DuctWoRx to
be blamed. The reality is that DuctWoRx
will only help your HVAC system, by reducing mold and
bacteria on the cooling coils.
In some cases, the furnace, AC Coils, and
distribution box are all stacked one after the other. In this case
there is no location where the DuctWoRx can be installed without a
disrupted air stream and still reach the entire home or office. In
these instances there is little choice but to install DuctWoRx in
the return air duct. Our testing indicates this will still provide
positive results.
- Some HVAC Installers
say that High-Intensity UV lamps can damage older ducts made of
non-UV resistant materials. Is this true?
Some older HVAC systems have ducts which could be damaged by direct
high-intensity UV exposure, such as typical germicidal UV lamps. The
good news is that DuctWoRx is a system, comprising of a UV lamp plus
a catalytic target. The cell surrounds the UV bulb in order to
interact and create the catalytic reaction. This prevents the
high intensity UV light from potentially damaging older ducts.
- Is there a
temperature limit for DuctWoRx?
Yes. Some older gas or oil forced air furnaces can reach
temperatures which exceed the maximum temperature limit of DuctWoRx.
High temperatures reduce the effectiveness of the system and can
potentially damage the DuctWoRx target material and lamp.
This limit is 150° F. If you are
unsure of the temperature where you plan on installing the unit, use
an oven thermometer to take a reading. If the temperature exceeds
150° F, place the unit further down the duct or on the return air
side.
- HVAC Installers have
been using UV lamps to keep mold and bacteria from growing on the
A/C Coils. Does DuctWoRx do the same thing?
UV lamps are good at reducing mold and bacteria, but they must be
positioned within six inches to be effective. It is strictly
line-of-sight. DuctWoRx is also very effective at reducing mold and
bacteria but for a very different reason.
Yes, both use UV, but the DuctWoRx UV lamp is part of a Catalytic
System which creates multiple friendly oxidizers. DuctWoRx
doesn't need to be within six inches of the coils to reduce mold and
bacteria. DuctWoRx doesn't need to have the air pass within six
inches to be effective as a germicidal.
- Why doesn't
DuctWoRx require regular cleanings?
DuctWoRx has natural ionization which takes place near the lamp.
These ions repel dirt to keep the lamp and target free from dirt in
normal conditions.
DuctWoRx's Oxidizers flow out from the unit as
"scrubbers" to constantly clean and purify, INCLUDING cleaning mold
and bacteria from the cooling coils, regardless of whether the unit
is installed in the outlet of the furnace or in the return air duct.
- How large an area
can a DuctWoRx cover?
DuctWoRx is rated for up to 3000 square feet. As a general rule for
residential use, install one DuctWoRx in each HVAC system. A typical
3 Ton heat pump will heat/cool 2000 sq ft, making one DuctWoRx per
unit ideal. Unlike Fresh Air or Classic, DuctWoRx isn't sized for a
specific square footage. The Oxidizing Gasses migrate throughout the
living space to clean the air. The larger the space, the longer the
process takes, and the longer it will take to treat new contaminates
which continually come into the home. DuctWoRx is not recommended
for homes of less than 700 sq ft.
- DuctWoRx has been
described as an Amplifier for the Fresh Air home purifier. Why?
DuctWoRx is a powerful "whole-home" purifier that works continuously
to clean wherever the ductwork in your home or office goes. It does
not have two important purifying technologies:
- Ionization. Providing particulate removal using both
Negative Needle Point Ionization and RF Ionization (alternating
positive and negative ionization). Fresh Air has a powerful
Ionizer, providing over 1.5M Ions/cu cm.
- Adjustable Ozone Output. Providing the ability to quickly
and effectively reduce odors like cigarette smoke or cooked fish
or burnt toast.
To illustrate this point, we have included the following letter sent
to an EcoQuest dealer from a customer showing how the DuctWoRx and
our purifiers effectively work together in the home:
Just a short note to tell you how happy we are with the
performance of the new DuctWoRx from EcoQuest. We have had a
Living Air Classic running in our home for almost a year and a
half, and have enjoyed the wonderful benefits of that machine.
We found the happy medium setting for our home of approximately
2,200 square feet, to be around 1500 on the purifier setting,
and the fan about half way up. We did however, have a couple of
rooms that are usually closed off, that did not get the benefit
of the odor killing ability of your machine.
We installed the DuctWoRx in our heating system just a couple of
weeks ago. I installed it into the main duct as the air leaves
the furnace, so that every register from there down the line
would get the air that passed through the cell. Within just a
couple of days, we actually found that we were beginning to turn
down the purifier level on our Classic to achieve the same
freshness we were accustomed to. We are now set to just 500 on
the purifier, and we have noticed not only a much sweeter,
fresher smell in all our main living areas, we have also noticed
that the closed off rooms, because they have a register in them,
are now totally odor free as well. All of the musty smell is now
gone from our entire home, including the laundry room at the far
end of the house.
This is incredible. We are very, very satisfied, and have told
everyone we know about this great combination of products.
Thanks so much for thinking of us. Have a great Holiday Season.
I know we will. I am confident that this year, my daughter may
no longer even have problems with her allergies from the live
Christmas tree.
Thanks again,
Tom
Sincerely,
Allen Johnston
Vice President, Technology Operations
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EcoQuest International - 310 T. Elmer Cox Drive, Greeneville, TN, 37743
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